The P2813: Pressure Control Solenoid “G” Control Circuit/Open points out the issue with “G” control circuit of the pressure control solenoid in the transmission. This part of the vehicle helps manage how the transmission operates and changes gears. The code could be triggered by a variety of issues related to the solenoid, its electrical connections, or the transmission fluid
P2813 quick overview
| Description | P2813: Pressure Control Solenoid “G” Control Circuit/Open |
| Is it serious? | This code is quite serious as it relates to the vehicle’s transmission control, which can affect driving performance and safety. |
| Possible causes | – Faulty pressure control solenoid “G” – Damaged wiring or poor connections to the solenoid – Transmission fluid issues (low level, poor quality) – Faults in the transmission control module – CAN bus communication errors |
| How to diagnose? | Inspect Solenoid: Check the pressure control solenoid “G” for damage or malfunction. Examine Wiring: Look over the wiring and connectors to the solenoid for any signs of wear or damage. Check Transmission Fluid: Verify the level and condition of the transmission fluid. Test Transmission Control Module: Evaluate the functionality of the transmission control module. Scan for Additional Codes: Use a diagnostic scanner to identify any related codes or communication issues. |
P2813 Meaning
The P2813 code means there’s a problem with a part in your car’s transmission called the pressure control solenoid “G”. This part helps your car shift gears smoothly. If it’s not working right, you might notice your car isn’t driving as well as it should. Fixing it can involve checking the part itself, looking at the wires connected to it, and making sure your transmission fluid is okay. It’s important to get this checked out because it can really affect how your car drives.
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How to fix P2813 – learn from mechanics
I looked into P2813 service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.
Case #1: Chevrolet
Vehicle Information: 2014 Chevrolet Malibu 2.5L
Issue + Repair History: The car displayed a P2813 code indicating a problem with the pressure control solenoid “G”. Previous repair attempts included transmission fluid change and solenoid inspection.
Suggestions to Fix Issue:
- Check the transmission fluid level and quality.
- Inspect the wiring and connectors to the pressure control solenoid “G”.
- Test the solenoid’s electrical function.
- Consider replacing the pressure control solenoid “G” if faulty.
- Re-flash or update the transmission control module.
Final Fix: Replaced the pressure control solenoid “G” and updated the transmission control module software.
Case #2: Ford
Vehicle Information: 2012 Ford Focus SE 2.0L
Issue + Repair History: Encountered P2813 code for pressure control solenoid “G” issue. The vehicle had erratic shifting patterns.
Suggestions to Fix Issue:
- Perform a thorough diagnostic scan of the transmission control system.
- Inspect for any transmission fluid leaks.
- Test the pressure control solenoid “G” for proper operation.
- Evaluate the condition of the transmission wiring harness.
- Reset and recalibrate the transmission control module.
Final Fix: Transmission wiring harness repair and recalibration of the transmission control module.
Case #3: GMC
Vehicle Information: 2015 GMC Sierra 1500 5.3L
Issue + Repair History: Truck exhibited a P2813 code related to transmission pressure control. Recently had a transmission service done.
Suggestions to Fix Issue:
- Verify proper transmission service procedure was followed.
- Inspect the transmission’s internal components for wear or damage.
- Test the transmission’s pressure control system.
- Replace any defective components within the transmission.
- Reset the transmission control module settings.
Final Fix: Corrected an improperly performed transmission service and reset the transmission control module.
Case #4: Volkswagen
Vehicle Information: 2013 Volkswagen Passat TDI 2.0L
Issue + Repair History: Displayed a P2813 code suggesting a fault in the transmission’s pressure control system. No prior transmission issues or repairs reported.
Suggestions to Fix Issue:
- Check for any software updates for the transmission control system.
- Inspect the transmission fluid for contamination.
- Perform a diagnostic test on the pressure control solenoid “G”.
- Look for any signs of wear or damage in the transmission.
- Consider replacing any defective solenoids or parts.
Final Fix: Updated the transmission control module software and replaced a faulty pressure control solenoid.
Case #5: BMW
Vehicle Information: 2016 BMW 328i xDrive 2.0L
Issue + Repair History: Car had the P2813 code indicating an issue with the pressure control solenoid “G”. Recently experienced harsh gear shifts.
Suggestions to Fix Issue:
- Conduct a full transmission system diagnostic.
- Ensure the transmission fluid is at the correct level and condition.
- Inspect the solenoid “G” for proper operation.
- Check the health of the transmission’s electronic control unit.
- Replace any malfunctioning transmission components.
Final Fix: Replaced the malfunctioning pressure control solenoid “G” and performed a transmission software update.
How to diagnose P2813
I made you an overview of solving this DTC, based on all the advice that was suggested by certified mechanics to address this issue in previously mentioned service cases.
| Common Advice | Brief Description of Diagnostic Step |
|---|---|
| Inspect Pressure Control Solenoid | Check the solenoid for proper operation and signs of damage. |
| Check Transmission Fluid | Verify the fluid level and quality, looking for any signs of contamination. |
| Test Electrical Connections | Inspect wiring and connectors to the solenoid for damage or looseness. |
| Update Transmission Control Module Software | Consider updating or re-flashing the transmission control module. |
| Perform Full Transmission Diagnostic | Conduct a comprehensive diagnostic scan of the transmission system. |
| Reset and Recalibrate Control Module | Reset the transmission control module and recalibrate if necessary. |
| Replace Faulty Components | Replace any defective parts identified during the diagnostic process. |
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko